Guinea pig cross breeds?

I have a pair of crossbred guinea pigs..both of them are half peruvians half smooth haired guinea pigs. If they would have a baby, what would their hair would look like? would the longhair trait be dominant? thank you.
Short (L) is dominant to long (l). Rough (R) is dominant to smooth (r). Pure bred Americans are LLrr while pure bred Peruvians are llRR. If both parents were pure bred then yours should be LlRr which would have short rough coats (Abyssinian like). If they don